Advertisement

Clinical Outcomes of Posterior Endoscopic Discectomy for Central Disc Herniation and Posterior Endplate Lesions in the Lumbar Spine

  • Masaki Kawai
  • Munehito Yoshida
  • Hideki Sumiya
  • Kazuo Iwasaki
  • Kazuhiro Maio
  • Hiroshi Yamada
Conference paper

Summary

The purpose of this study was to evaluate the results and the reliability of microendoscopic discectomy (MED) on the central protruded lumbar disc. From September 1998 to December 2001, we performed MED on 200 patients (mean age, 36.3 ± 15.1 years). Among these, 28 patients who present with central disc protrusion underwent disc extraction. Central disc herniation was seen in 17 patients (mean age, 29.8 ± 8.4 years). Posterior endplate lesions were found in 11 patients (mean age, 16.8 ± 5.6 years). Evaluation of the operative results used the Japanese Orthopaedic Association (JOA) scoring sytem. Twenty-seven of 28 patients underwent endoscopic surgery. The remaining patient was a case of open conversion in which the early version of the disposable endoscope was used. The METRx reusable endoscope posed no special problems. The average JOA score of patients with central disc herniation was 12.9 ± 0.9 preoperatively, which improved to 27.8 ± 0.9 postoperatively. The average operation time was 66.5 min per segment. The average JOA score of those with endplate lesions was 17.7 ± 1.8, which improved to 27.8 ± 1.8. The average operative time was 105.9min. There were no special interoperative complications to report.

Key words

Lumbar spine Posterior endoscopic surgery Central disc herniation Posterior endplate lesion MED system 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Yoshida M, Tamaki T, Yamada H, et al. (2000) Clinical findings and surgical treatment for a herniated lumbar disc in athletes during growth period. Jpn J Orthop Sports Med 20:314–319Google Scholar
  2. 2.
    Ebersold MJE, Quast LM, Bianco AJ Jr., et al. (1987) Results of lumbar disectomy in the pediatric patient. J Neurosurg 67:643–647PubMedGoogle Scholar
  3. 3.
    Banerian KG, Wang AM, Samberg LC, et al. (1990) Association of vertebral end plate fracture with pediatric lumbar intervertebral disc herniation: value of CT and MR imaging. Radiology 177:763–765PubMedGoogle Scholar
  4. 4.
    Foley KT, Smith MM, et al. (1997) Microendoscopic disectomy. Techn Neurosurg 3:301–307Google Scholar

Copyright information

© Springer-Verlag Tokyo 2005

Authors and Affiliations

  • Masaki Kawai
    • 1
  • Munehito Yoshida
    • 2
  • Hideki Sumiya
    • 1
  • Kazuo Iwasaki
    • 1
  • Kazuhiro Maio
    • 1
  • Hiroshi Yamada
    • 3
  1. 1.Department of Orthopaedic SurgerySumiya Orthopaedic HospitalWakayamaJapan
  2. 2.Department of Physical Medicine and RehabilitationWakayama Medical UniversityWakayamaJapan
  3. 3.Department of Orthopaedic SurgeryShingu Municipal Medical CenterWakayamaJapan

Personalised recommendations